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["Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>]

Po-Hsu Lin, thank you for taking the time to report this bug and helping to make Ubuntu better. Please execute the following command only once, as it will automatically gather debugging information, in a terminal:
apport-collect 1355128

** Package changed: linux-lts-trusty (Ubuntu) => linux (Ubuntu)

** Changed in: linux (Ubuntu)
   Importance: Undecided => Low

** Changed in: linux (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1355128

Title:
  [Lenovo B490s] Unable to disable the touchpad with the hotkey on
  12.04.5

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  CID: 201307-13943, 201307-13944 Lenovo B490s

  The hotkey (Fn+F6) for disabling / enabling touchpad does not work on
  this system.

  
  In xev, only the Fn key press could be detected (keycode 151), combined with F6, nothing shows up execpt keycode 151
  ubuntu@201307-13944:~$ xev | sed -n 's/^.*state \([0-9].*\), keycode *\([0-9]\+\) *\(.*\), .*$/keycode \2 = \3, state = \1/p'
  keycode 36 = (keysym 0xff0d, Return), state = 0x0
  keycode 151 = (keysym 0x1008ff2b, XF86WakeUp), state = 0x0
  keycode 151 = (keysym 0x1008ff2b, XF86WakeUp), state = 0x0
  keycode 151 = (keysym 0x1008ff2b, XF86WakeUp), state = 0x0
  keycode 151 = (keysym 0x1008ff2b, XF86WakeUp), state = 0x0
  keycode 151 = (keysym 0x1008ff2b, XF86WakeUp), state = 0x0

  Fn+F6 could be detected by acpi_listen
  ubuntu@201307-13944:~$ acpi_listen 
  ibm/hotkey LEN0068:00 00000080 000060a0
  ibm/hotkey LEN0068:00 00000080 000060a0

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.13.0-32-generic 3.13.0-32.57~precise1 [modified: boot/vmlinuz-3.13.0-32-generic]
  ProcVersionSignature: Ubuntu 3.13.0-32.57~precise1-generic 3.13.11.4
  Uname: Linux 3.13.0-32-generic x86_64
  NonfreeKernelModules: wl
  ApportVersion: 2.0.1-0ubuntu17.6
  Architecture: amd64
  Date: Mon Aug 11 06:56:59 2014
  InstallationMedia: Ubuntu 12.04.5 LTS "Precise Pangolin" - Release amd64 (20140807.1)
  MarkForUpload: True
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: linux-lts-trusty
  UpgradeStatus: No upgrade log present (probably fresh install)

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